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Round|Lab Grown|IGI

1.67ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG597391908

Shape and cutting style on the report: Round brilliant

Certificate IGI LG597391908

Diamond specifications and retailer prices

From $283 AUD
$199 USD
As of October 29, 2026
Save $2,435 AUD (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,719 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.67ct lab-grown round diamond

This 1.67ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG597391908 or 597391908. Listed at 11 retailers as of October 29, 2026, with prices from $283 to $2,719, a $2,435 spread on the same certified stone. Do Amore Diamonds lists it at $2,719. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.67
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG597391908
Dimensions7.68 × 7.65 × 4.60 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.68 mm7.65 mm1.67 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG597391908
Side View
Table 59.0%Crown 33.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,719 AUD|Low: $275 AUD|High: $2,818 AUD|Avg: $1,041 AUD|-3.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 10$283 AUD
Retailer 3$320 AUD
Retailer 8$329 AUD
Retailer 7$609 AUD
Retailer 4$673 AUD
Retailer 9$1,081 AUD
Retailer 5$1,133 AUD
Retailer 6$1,245 AUD
Retailer 11$1,352 AUD
Retailer 2$1,562 AUD
Do Amore Diamonds$2,719 AUD

39 data points across 11 retailers

11 retailers$283 AUD to $2,719 AUD

A
Cheapest Retailer
-
$283 AUD
$199 USD
A
Retailer 2
-
$320 AUD
$225 USD
View
Final sale: no returns
A
Retailer 3
-
$329 AUD
$231 USD
View
B+
Retailer 4
-
$609 AUD
$428 USD
View
A
Retailer 5
-
$673 AUD
£372 GBP
View
B+
Retailer 6
-
$1,081 AUD
$759 USD
View
B+
Retailer 7
-
$1,133 AUD
$796 USD
View
B+
Retailer 8
-
$1,245 AUD
$875 USD
View
B
Retailer 9
-
$1,352 AUD
$950 USD
View
B
Retailer 10
-
$1,562 AUD
£864 GBP
View
Most Expensive
B
Do Amore Diamonds
27-33DBD3C18 · Oct 29
$2,719 AUD
$1,910 USD
View
10 more retailers have this diamond
Prices start from $283 AUDSave up to $2,435 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.67ct Round
$283 AUD